.brain-top{
    width: calc( ~"100% -" 100px);
    margin: 0 auto;
    background: rgba(26,167,184,.7);
    border-radius: 10px;
    color: #fff;
    padding: 20px;
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    align-items: flex-start;
    .title{
        font-size: 32px;
        font-weight: bold;
        text-align: center;
    }
    .fillcontent{
        font-size: 28px;
        text-indent: 20px;
        word-break: break-all;
    }
    &>div{
        &:first-of-type{
            flex: 7;
        }
        &.last{
            flex: 3;
            font-size: 24px;
            display: flex;
            flex-direction: row;
            justify-content: flex-end;
            div{
                margin-left: 15px;
            }
        }
    }
}
.brain-center{
    width: 100%;
    margin-top: 5px;
    overflow: auto;
    padding: 0 50px;
    &::-webkit-scrollbar-track-piece{width:0px;background-color:#fff ;  }
    &::-webkit-scrollbar{width:0px;height:0px ; }
    &::-webkit-scrollbar-thumb{height:0px;background:#ccc;   cursor:pointer;}
    &::-webkit-scrollbar-thumb:hover{background:#ccc ; cursor:pointer}
    &.gold{
        padding: 0 150px 0 50px;
        .gold-info{
            width: 70px;
            position: absolute;
            right: 113px;
            bottom: 50px;
            div{
                width: 70px;
                height: 80px;
                margin-bottom: 5px;
                display: flex;
                justify-content: center;
                align-items: flex-end;
                font-size: 22px;
                color: #000;
                background-size: 100% 100%;
                padding-bottom: 2px;
            }
        }
    }
    ul{
        width: 100%;
        padding: 0 20px;
        li{
            display: flex;
            flex-direction: row;
            justify-content: flex-start;
            align-items: flex-start;
            width: 100%;
            margin: 10px 0;
            &:nth-of-type(odd){
                .answer{
                    margin-left: 30px;
                    animation: left 0.5s forwards;
                    animation-delay: 0.5s ;
                    word-break: break-all;
                }
            }
            &:nth-of-type(even){
                .answer{
                    margin-right: 30px;
                    animation: right 0.5s forwards;
                    animation-delay: 0.5s ;
                    word-break: break-all;
                }
            }
            img{
                border-radius: 50%;
                width: 50px;
                height: 50px;
                display: block;
                animation: user 1s;
            }
            .user{
                flex: 1;
                text-align: center;
                display: flex;
                flex-direction: column;
                justify-content: center;
                align-items: center;
                color: #000;
                font-size: 24px;
            }
            .answer{
                padding: 20px;
                border-radius: 5px;
                background: rgba(26,167,184,.7);
                color: #fff;
                flex: 9;
                font-size: 24px;
                opacity: 0;
            }
        }
    }
}

@keyframes user {
    0%{
        box-shadow: 0 0 0 0 rgba(0,0,0,.5);
    }
    100%{
        box-shadow: 0 0 0 20px rgba(0,0,0,0);
    }
}

@keyframes left {
    0%{
        transform: translateX(-150px) scale(0.5);
        opacity: 0;
    }
    100%{
        transform: translateX(0px) scale(1);
        opacity: 1;
    }
}

@keyframes right {
    0%{
        transform: translateX(150px) scale(0.5);
        opacity: 0;
    }
    100%{
        transform: translateX(0px) scale(1);
        opacity: 1;
    }
}
